I have a problem with load balancer 4.0

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==> logs/wowzastreamingengine_access.log <==                                                                                                                          │
2018-03-15      15:50:05        ICT     comment server  ERROR   500     -       Encrypter:Decrypt() Error decrypting message: '<html><head><title>Wowza Streaming Engi│
ne 4 Trial Edition (Expires: Apr 14, 2018) 4.7.4 build21380</title></head><body>Wowza Streaming Engine 4 Trial Edition (Expires: Apr 14, 2018) 4.7.4 build21380</body>│
</html>, : java.lang.NullPointerException|at com.wowza.wms.plugin.loadbalancer.encoders.Thor.decrypt(Thor.java:74)|at com.wowza.wms.plugin.loadbalancer.encoders.Encry│
pter.decrypt(Encrypter.java:106)|at com.wowza.wms.plugin.loadbalancer.general.XMLParser.xmlParse(XMLParser.java:55)|at com.wowza.wms.plugin.loadbalancer.general.URLHa│
ndler.clientBandwidthURL(URLHandler.java:54)|at com.wowza.wms.plugin.loadbalancer.monitors.LoadBalanceBandwidthMonitorClient.run(LoadBalanceBandwidthMonitorClient.jav│
a:173)| -       -       -       55.356  -       -       -       -       -       -       -       -       -       -       -       -       -       -       -       -    -│
-       -       -       -       -       -       -       -                                                                                                             │
                                                                                                                                                                      │
==> logs/wowzastreamingengine_error.log <==                                                                                                                           │
ERROR   server  comment 2018-03-15      15:50:05        -       -       -       -       -       55.356  -       -       -       -       -       -       -       -    E│
ncrypter:Decrypt() Error decrypting message: '<html><head><title>Wowza Streaming Engine 4 Trial Edition (Expires: Apr 14, 2018) 4.7.4 build21380</title></head><body>W│
owza Streaming Engine 4 Trial Edition (Expires: Apr 14, 2018) 4.7.4 build21380</body></html>, : java.lang.NullPointerException|at com.wowza.wms.plugin.loadbalancer.en│
coders.Thor.decrypt(Thor.java:74)|at com.wowza.wms.plugin.loadbalancer.encoders.Encrypter.decrypt(Encrypter.java:106)|at com.wowza.wms.plugin.loadbalancer.general.XML│
Parser.xmlParse(XMLParser.java:55)|at com.wowza.wms.plugin.loadbalancer.general.URLHandler.clientBandwidthURL(URLHandler.java:54)|at com.wowza.wms.plugin.loadbalancer│
.monitors.LoadBalanceBandwidthMonitorClient.run(LoadBalanceBandwidthMonitorClient.java:173)|
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Hi @natthaphon phoonsookserm

This forum is called “Hire a Consultant”, and meant for inquiries for paid support from authorized (external) consultants. If you’re looking for support from Wowza, you may post your question in https://www.wowza.com/community/spaces/31/wowza-streaming-engine-support-forums.html, or join the Slack community (https://www.wowza.com/slack)

Said that, the problem is likely that you are using load balancer 4.0 and it is not configured correctly, please use 4.5 as it auto configures things.